build

#!/bin/bash
# 
# Author: chris.jenkins@oracle.com
# 
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
# 
# LICENSE UPL 1.0
#
# Copyright (c) 2022 Oracle and/or its affiliates.
# 
# Script to build the image.
# 

declare -r cfgfilename="container.cfg"
declare -r dflt_registry="container-registry.oracle.com"
declare -r dflt_baseimage="container-registry.oracle.com/timesten/timesten:22.1.1.1.0"
declare -r dflt_imagename="ttimage"
declare -r dflt_containername="ttcontainer"

declare basedir
declare cfgfile
declare -i login=1

usage()
{
    echo
    echo "Usage:"
    echo
    echo "    build [--login]"
    echo
    echo "Builds the TimesTen container image. Parameters are:"
    echo
    echo "  --login"
    echo "      Logs in to the container registry."
    echo
    exit 100
}

loadConfig()
{
    local cfile

    if [[ $# -ne 1 ]]
    then
        return 1
    fi
    cfile="$1"

    if ! source "${cfile}" >& /dev/null
    then
        echo
        echo "error: unable to load configuration from '${cfile}'"
        echo
        return 1
    fi
    if [[ "${DOCKER_REGISTRY}" == "" ]]
    then
        export DOCKER_REGISTRY="${dflt_registry}"
    fi
    if [[ "${DOCKER_BASEIMAGE}" == "" ]]
    then
        export DOCKER_BASEIMAGE="${dflt_baseimage}"
    fi
    if [[ "${DOCKER_TTIMAGE}" == "" ]]
    then
        export DOCKER_TTIMAGE="${dflt_imagename}"
    fi
    if [[ "${DOCKER_TTCONTAINER}" == "" ]]
    then
        export DOCKER_TTCONTAINER="${dflt_containername}"
    fi

    return 0
}

basedir=$(dirname "$0")
cfgfile="${basedir}/${cfgfilename}"
if ! loadConfig "${cfgfile}"
then
    echo "error: ***** build failed *****"
    echo
    exit 1
fi

while [[ $# -gt 0 ]]
do
    case "$1" in
        "--login")
            if [[ ${login} -eq 0 ]]
            then
                usage
            fi
            login=0
            ;;
        *)
            usage
            ;;
    esac
    shift
done

if ! cd "${basedir}" >& /dev/null
then
    echo
    echo "error: unable to access '${basedir}'"
    echo
    echo "error: ***** build failed *****"
    echo
    exit 2
fi

# login to container registry if requested
if [[ ${login} -eq 0 ]]
then
    echo
    echo "info: Logging in to container registry '${DOCKER_REGISTRY}'"
    echo "info: Please enter your Oracle credentials when prompted"
    if ! docker login "${DOCKER_REGISTRY}"
    then
        echo
        echo "error: ***** build failed *****"
        echo
        exit 3
    fi
fi

# cleanup before we start
echo
echo "info: cleaning up ready for build"
docker container rm "${DOCKER_TTCONTAINER}"
docker image rm "${DOCKER_TTIMAGE}"
docker image prune --force

echo
echo "info: building image '${DOCKER_TTIMAGE}'"
if ! docker build --build-arg BASEIMAGE="${DOCKER_BASEIMAGE}" --tag "${DOCKER_TTIMAGE}" .
then
    echo
    echo "error: ***** build failed *****"
    echo
    exit 4
fi

echo
echo "info: build successful"
echo

exit 0